const allData = writer.getChunks();
Opens in a new window，这一点在同城约会中也有详细论述
，更多细节参见safew官方版本下载
ISS astronauts begin journey back to Earth in Nasa’s first ever medical evacuation。业内人士推荐Line官方版本下载作为进阶阅读
Credit: YouTube / Southern Lights
This fragmentation hurts portability. Code that performs well on one runtime may behave differently (or poorly) on another, even though it's using "standard" APIs. The complexity burden on runtime implementers is substantial, and the subtle behavioral differences create friction for developers trying to write cross-runtime code, particularly those maintaining frameworks that must be able to run efficiently across many runtime environments.